ATP World TourNadal Helps Power Spain To World Group ReturnATP World TourKei Nishikori and Yuichi Sugita turned in a dominant performance to keep Japan afloat in the World Group, downing Ukraine’s Artem Smirnov and Sergiy Stakhovsky 6-3, 6-0, 6-3 on Saturday. The efficient one-hour and 38-minute victory in Osaka gave the …and more »